Suction device



FIG. 1 is a front perspective view of our suction device;

FIG. 2 is the top view thereof;

FIG. 3 is the bottom view thereof;

FIG. 4 is the right side view thereof;

FIG. 5 is the left side view thereof;

FIG. 6 is the rear view thereof; and,

FIG. 7 is the front view thereof.

The details shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a suction device, as shown and described. 